About the US 19th Reinforcement Depot in France

Hello,
 
I am French and i am looking for pictures, documents, informations, web data or people knowing the American base : 19th Reinforcement (or Replacement) Depot near Etampes 40 km in the south of Paris during the 2nd World War (see the attached document). This camp was adjacent to the 7th Convalescent Hospital. My father and my grandfather were farmers and worked with the soldiers  of  the 19th RD. Thus, they where the only alowed civils people in this camp  ("family Collet"). I thank you by advance for your contribution. Sincerely yours. Gérard Collet 36, rue de la Vallée Barbot  91580 Etréchy France gerard.collet@netcourrier.com

Can you direct me to a place where I can find more information about this location?  My father was first a patient in the 7th Convalescent center and then assigned to the 19th Reinforcement Depot.  I would like to learn more about these two facilities.
 
Thank you for your help.